Telegraph-key.



B. B. YOUMANS.

TELEGRAPH KEY.

APPLICATION FILED APRA, 1913.

1,109,310. Patented Sept/1, 1914.

Witnesses by 9/ v I Attorneys THE NORRIS PETERS 60., FHaTO-LITHQ. WASHINGTON. D C.

Toall it may) mam. I i

i "ma w tra a o ;"B e'jit known that I, BARTowyB'. YonMANs, a c tizen of the United States, residing atv College Park, in theicountyiof-Fulton and Stateof Georgia, haveinvented a new; and

useful Telegraph-Key, ofwhich the follow ing is a specification.

, ,Thepresent invention relates to improvements in telegraph keys, one object of the c implified v construction present invention being'the productionof a,

of horizontally a swinging lever key, in whichthemovement of the lever in oneLd-ireotion produces f dots while the movement, of "the lever in the otherdirec'tion produces dashes, there being provided an equalizing; resilient means for maintaining the; lever normally out, of

p contact and in line op'en conditiong v r, still further objeot ofithe present in vention is the-,provisionvof a ke'ybf this character which is designedto displace the usual vertically movable key andqtol be at tachedtothe usual supporter table top in iew which. will appear as the description-1 proceeds, the invention resides in the com v bination and arrangement of partsQand in place thereof, the samebeingvery simple and .compact in constructionand being provided with terminal screws that: form a means for fastening the key base to the table top or desk and at the same time forming a connection for the inain line.) w

NYith the foregoing and 0th r objects in c the details of construction hereinafter de scribed and claimed, it being understood that changes in thefprecise embodiment: of

the invention herein disclosed, can be made tion of' the complete key showing the same attachedin positiontoasupp0rt, asjatable within thescope ofjwhat is claimed, without I departing tion.

0rsk= QP; Q'F ge s "a topkplan V ew o the complete key. I, Fig. 3 is a seetionalview adjacent the leversupporting {frame shoW-.-

ing the detail construction thereofi andfa modified m a o m a et lever i 1 open circuit position. f Fig. is a detail-'view Y: esLEej ies -K Y- I s Sbecification ot Lettersll fatent, '12; r 1aaiana a1 199 13." seriainolrsezs from-the spirit of the ii ven the drawings Figure his a sideielevagootnncrn ranxfcrnoneriir c,

Patented. Saw, 1914;

dash.

Referring tothe drawings, thenumeral l des gnatesthe top of air-table or desk whichiszthe usual support for transmitting keys, there belngidlsposed thereupon an insulatthevibratioin ofthe lever and sending a h ingbase2 with the'metal base 3 of the key, i the two bases r; 2- and' 3" being properly clamped to and secured upon the support If by means of the? screws .4 and .5 and thumb .60 nuts 4 and"5 respectively. These" screws constitutethe binding or terminal j posts for the respective main line conductors 6 and"? and; are electrically connected-with. the'parts v of the key, asfwill presently appear so .that: telegraphic signals such as dot and. dash may besent out upon' the line. Con-i nected to the base; plate; 3 and upstanding therefrom, adjacent one end; isa.,support-;

ingframe ,8 which has disposed therein? for" hor zontal swinging movement the shaft 19 v adjustably connected by means of the screw. 9 to the connectingfportion'ofthe frame. 8

while the lower end thereof is mounted within thebase plate? Pivotally connected tothe shaft 9 for horizontal swinging movement ,is the rigid section l0-of-j"the horizontally disp'osed'swinging lever of. the key. r

Thefree end of'the'po'rtion 10, is reduced as at 11 to fit within the recessed end of the fingerpiece 12, the "same being preferably made of vulcanite' or some such material tof provide a nonconducting gripping portionr' I at equidistant points from the shaft 9, the

advantage beingthat whenthe finger piece 12 is releasedQthe spring will automatically returntheleve'rtocircuit opengposition.

Carried by th'e frame 8 opposite to v the ispring lo and alsovprojecting' in opposite direction to the finger piece 12,,is astud or; arm 14, in which is threadedzthe adjusting )f the damping device. used" for"- preventing screw 15,1the jinner endof "which is} disposed to be in a path to abut the solid portion 10 of the lever in a line substantially with the engagement thereof with the outer terminal of the spring 13, the screw 15 being adjustable so as to limit the movement of the lever when the same isbeing manipulatedto send, Connected to f and upstanding from the, base 3 and ap proximately in a line with one terminal of the frame 8 adjacent to the end of the base,-.

a dot out upon the line.

is a post 16, which has disposed in the upper end thereof the adjustable-screw .,1 7 whosecontact terminal 18 is disposed path to be engaged by the fixed' contactfl of the lever when the lever is manipulated to send a dash out upon..the. .line. Apost is 7 also connected to and upstanding from the b'a'sez3 intermediate 'ofthe ends thereof and completed through the contacts- 18 and 19 -when the lever is manipul'atedto senda fdash or means of the dot adjusting .30.

screw mounted in the upper end of the post 20 and the contact end-29 ofthe dot sending spring 28, As in these forms of transmitting keys, a resilientsection is prohaving its terminals connected respectively to the section 10a ndjs'ection'25 ofthe lever,

. the section 25 being slotted as at 24: so asto In order toprovide accommodate one terminal of the spring-28 and also the section 23- therebetween. f The 'section'25 as clearly shown is provided with exterior threads 26 upon which is mounted 'usted to var "n touches of the mani ul I s lators. j v a means for resiliently holding thelever against vibration when the fingerpiece-12 is moved to causethe contacts 19;and 18 to engage and thus send out upon the line a dash a support 32 is connectedto the base 3 adjacent the free end of lever and has pivoted to the upper end thereof, the L-shapedpendant 83, which normally assumes the position, as shown in Fig 4, tobe swung to the dotted line position and conta'cted by the cylindrical portion 25 cf the lever,- f'

From the foregoing descriptiomit is evi dent that a" key constructed in-accordance with the present invention, may be readily attached andused in-flieu of the usual vertically swingingk'ey, an'd not necessitate the liability of misadjusting the usual key'now employed when various operators using a horizontal key connect "-and"disc'onpivotal point thereofs vided, said section being-shown as at '23 nect the same from such vertically swinging key.

- \Vhatis claimed 1s:'

1. A telegraph key including a base having two main line connecting and supporting; screws for permanently connecting the base'to -a support, a frame carried by the base, a horizontally swinging lever supported from the base, ares ilient dot contact sp ring-and a fixed dash contact carried by. the lever, two contact carrying posts connected to the base, said posts-being disposechadjaoent to the respective contact spring and fixedcontact of the lever, and

resilient means carried by the frame for equalizing the pressure 'atithe pivotal point of the lever to-maintainthe lever with the contacts disengaged and the circuit openl 2. A telegraphkey including abase hav-. ingtwo main line connecting and supporting screws for permanently connecting the A telegraph keyfincluding-a base, two

connecting and supporting screws connected thereto for permanently connecting thebase to -a' 'support, said screws-also form ng the terminals for the main line, a frame carried bythe base, a horizontally swinging lever supported from the base and provided with an intermediate 'resilientsection capable of the milled ad ustable weight 27, whlch proflexlng horizontally, a 113811161117 dot con-1 vides means whereby-the lever'may be adtact spring connected adjacent to the resili ent section with the outer-rigid section, I dash contact carried by the rigid section upon' the opposite side of the pivotal point i of the lever to the resilient contact, two

posts connected to and insulated from-the -base,"'one of said posts being disposed adja'cent' to the fixed contact while the'oth'er postis disposed adjacent to the resilient contact, an adjustable contact mounted in each ,ofsaid pos'tsfand a double terminal spring carried by the frame andhaving its terminals disposed to engage the lever equi-' distantlynpon each side ofthe pivotal point thereofp I 49A telegraph key,-including a base having-two main connecting screws, *frame carried by the base, 'a horizontally swinging lever/supported from the base, a resili-f ent dot Contact spring and affixed "dash? contact carried by the lever, two contactc'arrying posts connected to the base, saidposts. being disposed adjacent to the respective contact sprin and fixed contact as my own, I have hereto aifixed my signaof the1 l%ver,hang% a dou 1g tierminal spring ture in the presence of two witnesses. carrie y t e rame an aving its terminals disposed to engagethe lever equidis'. BARTOW YOUMANS' 5 tantly upon each side of the pivotal point Witnesses:

thereof. 7 I a H. C. BROOM,

In testimony that I claim'the foregoing Y B. A. WRIGHT.

Copies of this patent may be obtained for fi've cents each; by addressing the Commissioner of Patents, a Washington, D. C.

Vex M 

